旅游干扰对喀纳斯景区草地植物多样性的影响

doi:10.11733/j.issn.1007-0435.2008.06.016

›› 2008, Vol. 16 ›› Issue (6): 624-629,635.DOI: 10.11733/j.issn.1007-0435.2008.06.016

旅游干扰对喀纳斯景区草地植物多样性的影响

郑伟^1,2, 朱进忠^1,2, 潘存德³

1. 新疆维吾尔自治区草地资源与生态重点实验室, 乌鲁木齐, 830052;
2. 新疆农业大学草业与环境科学学院, 乌鲁木齐, 830052;
3. 新疆农业大学林学院, 乌鲁木齐, 830052

收稿日期:2007-12-27 修回日期:2008-04-18 出版日期:2008-12-15 发布日期:2008-12-15
通讯作者: 朱进忠,E-mail:xycy@xjau.edu.cn
作者简介:郑伟(1978- ),湖北武汉人,博士研究生,研究方向为草地生态及植物生态,E-mail:zw065@126.com.
基金资助:
国家自然科学基金资助项目(30560124)

Effect of Tourism Disturbance Intensity on Plant Species Diversity of Meadow Community in Kanasi Nature Reserve

ZHENG Wei^1,2, ZHU Jin-zhong^1,2, PAN Cun-de³

1. College of Pratacultural and Environmental Science, Xinjiang Agricultural University, Urumqi, Xinjiang Uigur Autonomous Region 830052, China;
2. Xinjiang Key Laboratory of Grassland Resources and Ecology, Urumqi, Xinjiang Uigur Autonomous Region 830052, China;
3. College of Forestry, Xinjiang Agricultural University, Urumqi, Xinjiang Uigur Autonomous Region 830052, China

Received:2007-12-27 Revised:2008-04-18 Online:2008-12-15 Published:2008-12-15

摘要/Abstract

摘要： 研究喀纳斯景区旅游干扰下草甸草地群落的植物多样性,利用主要物种重要值、α多样性、功能群重要值和β多样性比较分析不同干扰后群落植物多样性及结构功能的变化。结果表明:随着干扰强度的增加,群落物种组成从以不耐旅游干扰的物种为主逐渐发展到以耐旅游干扰的物种为主,群落的重要值有向少数物种集中的趋势;Patrick丰富度指数和Shannon-Wiener指数均随着干扰强度的增加而呈下降趋势,均匀度指数则在中度干扰下最大,生态优势度的变化与α多样性的变化存在一定的负关联;功能群丰富度在中度干扰下最高;中度-重度干扰阶段群落间的物种替代速率最快。喀纳斯景区草甸草地群落稳定与群落自身的物种多样性、功能群功能特性及结构特点密切相关。

关键词: 旅游干扰, α多样性, 功能群, β多样性, 草甸草地

Abstract: In recent years,tourism has developed rapidly in Kanasi Nature Reserve,a national ‘5A’ scenic area.The disturbance of tourism on the plant species diversity of meadow community in Kanasi scenic area were studied using species important value,α diversity,functional group important value,and β diversity,and the dynamics of plant species diversity,community structure,and function were compared.The results show that the species composition and their important value were significantly impacted by tourism disturbance.With increasing tourism disturbance intensity,some tourism-sensitive plants disappeared or their important value decreased,while some tourism-resistant species expanded their population.The important value of total community tended to concentrate in several tourism-resistant species.The values of Patrick richness index and Shannon-Wiener index decreased with increasing tourism disturbance intensity,while the higher values of evenness index were found under moderate disturbance intensity.The relationship between α diversity and community dominance was negative.The highest values of functional group richness were found under moderate disturbance intensity.The species turnover rate was most rapid in the stage of moderate to heavy disturbance.The intrinsic species diversity,functional characteristics and structural traits of functional group were closely related to community stability.

Key words: Tourism disturbance, α diversity, Functional group, β diversity, Meadow community

中图分类号:

S812
Q148

郑伟, 朱进忠, 潘存德. 旅游干扰对喀纳斯景区草地植物多样性的影响[J]. , 2008, 16(6): 624-629,635.

ZHENG Wei, ZHU Jin-zhong, PAN Cun-de. Effect of Tourism Disturbance Intensity on Plant Species Diversity of Meadow Community in Kanasi Nature Reserve[J]. , 2008, 16(6): 624-629,635.

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旅游干扰对喀纳斯景区草地植物多样性的影响

Effect of Tourism Disturbance Intensity on Plant Species Diversity of Meadow Community in Kanasi Nature Reserve

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